13140697 has 2 divisors, whose sum is σ = 13140698. Its totient is φ = 13140696.

The previous prime is 13140689. The next prime is 13140719. The reversal of 13140697 is 79604131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 2277081 = 3296^2 + 1509^2 .

It is a cyclic number.

It is not a de Polignac number, because 13140697 - 2³ = 13140689 is a prime.

It is not a weakly prime, because it can be changed into another prime (13140607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570348 + 6570349.

It is an arithmetic number, because the mean of its divisors is an integer number (6570349).

Almost surely, 2^13140697 is an apocalyptic number.

It is an amenable number.

13140697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13140697 is an equidigital number, since it uses as much as digits as its factorization.

13140697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13140697 is about 3625.0099310209. The cubic root of 13140697 is about 235.9786979241.

The spelling of 13140697 in words is "thirteen million, one hundred forty thousand, six hundred ninety-seven".